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Introduction to Linux - A Hands on Guide

This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.

I have a superpad3 where I have installed some apk files (including some system viewer and file manager apps, so settings may have been altered). However, I have not 'rooted' it and I do not have root access. The problem that I am facing is that the tablet goes into sleep mode on pressing the power switch, and does not ask me for a shutdown. If left lying, as the battery is depleted, it shuts down. I have terminal app installed but 'shutdown' command does not work since I do not have permission.

Is there any software app for shutting down the android system or this can be done only through the hardware power switch? How do I solve this problem?

An app called "power switch pro" claims it can do that. Including setting it so setting it face down will cause it to shut down (using accelerometer)

You might try uninstalling the system viewer and see if the problem goes away. I don't see a file manager app interfering with processes, or using the power switch for it's own purpose. A photo app might, trapping the power switch to use to snap pictures.

I have a superpad3 where I have installed some apk files (including some system viewer and file manager apps, so settings may have been altered). However, I have not 'rooted' it and I do not have root access. The problem that I am facing is that the tablet goes into sleep mode on pressing the power switch, and does not ask me for a shutdown. If left lying, as the battery is depleted, it shuts down. I have terminal app installed but 'shutdown' command does not work since I do not have permission.

Is there any software app for shutting down the android system or this can be done only through the hardware power switch? How do I solve this problem?

Thanks for your help.

The 'problem' lies in that you need to hold it down for 'a few' seconds until it changes screen.
THEN you will see the slide for OFF.

The 'problem' lies in that you need to hold it down for 'a few' seconds until it changes screen.
THEN you will see the slide for OFF.

Recently I've bought a ESPOW android tablet pc which comes with a 10.1" capacitive multi-touch screen with a resolution of 1024*600, a Android 2.3 OS and 1.2GHz CPU, a 512MB memory and 4GB flash, two cameras including 0.3MP front camera&2.0MP back camera, supports for WiFi, 3G and Bluetooth.
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